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Journal of Tea Science ›› 2005, Vol. 25 ›› Issue (1): 71-74.doi: 10.13305/j.cnki.jts.2005.01.013

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Synthesis of tea polysaccharide-Fe(Ⅲ)complex and determination of Fe(Ⅲ)

LI Yu-xian1, PEI Xiao-hong2   

  1. 1. Department of Chinese Medicine, Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China;
    2. Pingdingshan Environmental monitoring station, Pingdingshan 467000, China
  • Online:2005-03-25 Published:2019-09-16

Abstract: Tea polysaccharide was abstracted with warm water, tea polysaccharide-Fe(Ⅲ)complex(TPC) was synthesized with tea polysaccharide and FeCl3 under the alkaline condition, The determination of Fe(Ⅲ) was conducted with the method of ferroin-Fe(Ⅱ) and atomic absorption spectrophometry. The results showed that: TPC is heavy brownish red and shapeless powder. It can dissolve in water, its solution is very stable at the pH from 3 to 12. Content of Fe(Ⅲ)in TPC is 20.71% by the method of ferroin- Fe(Ⅱ)and 20.13% by the method of atomic absorption.

Key words: Tea polysaccharide, Polysaccharide-Fe(Ⅲ)complex, Synthesis, Determination of iron

CLC Number: